Question

3. 200 × 38.4 =

4. 900 × 20.7 =
help please it has to be solved like this 400*45.2=400* 45+400*0.2=18000+80=18080

Answer 1

3. 7680

4. 18630

Explanation:

3. solution:

200 * 38.4 = 200 *38 + 200 * 0.4

= 7600 +80

=7680

4. solution:

900 * 20.7 = 900 *20 + 900 * 0.7

= 18000 + 630

= 18630